We do not recommend use of unregistered top-level
domains at all, but should network operators decide to do this, the
following top-level domains have been used on private internal
networks without the problems caused by trying to reuse ".local." for
this purpose:
.intranet.
.internal.
.private.
.corp.
.home.
.lan.

It should say:

We do not recommend use of unregistered top-level domains.

Notes:

Since TLDs like .private are currently available for register. Appendix G is outdated and I would strongly advise the IETF to remove the suggested TLDs since they are no longer problem free. I believe that it is wise to make a harder statement in the RFC.
--VERIFIER NOTES--
During the development of this RFC, the text is consistent with the consensus of the community. Later developments by ICANN superseded the appendix, but that is not applicable for an erratum. Updates to the text should be proposed via the draft publication process.